Cm is a minor, spelled C, Eb and G. In Open G tuning (D2 G2 D3 G3 B3 D4) the easiest shape is x55045, which sits at fret 4, spans 1 fret, lets 1 string ring open and mutes 1 string. 12 positions for it are shown below, from the nut up to fret 13.
Notes and intervals
Note
C
Eb
G
Interval
1P
3m
5P
12 ways to play it
Ordered by how hard they are to fret, easiest first, one per position on the neck. Fret numbers are relative to the position marked beside each grid.
x55045sits at fret 4, spans 1 fret, lets 1 string ring open and mutes 1 string101011sits at fret 1, needs no stretch at all and lets 2 strings ring open100108810sits at fret 8, needs a barre across 2 strings at fret 8 and lets 1 string ring openx55885sits at fret 5, needs a barre across 5 strings at fret 5 and mutes 1 string1001301313sits at fret 10, spans 3 frets and lets 2 strings ring open1301301313sits at fret 13, needs no stretch at all and lets 2 strings ring openx013121313sits at fret 12, spans 1 fret, lets 1 string ring open and mutes 1 stringx5504xsits at fret 4, spans 1 fret, lets 1 string ring open and mutes 2 stringsx5554xsits at fret 4, spans 1 fret and mutes 2 stringsx01011sits at fret 1, needs no stretch at all, lets 2 strings ring open and mutes 1 string10101xsits at fret 1, needs no stretch at all, lets 2 strings ring open and mutes 1 stringxxx545sits at fret 4, spans 1 fret and mutes 3 strings
Keys Cm belongs to
Cm is diatonic to 24 of the 96 keys this app knows, playing a different role in each.